Watch warnings when running gulp dev

Deployment type

• Cloud Foundry Application (cf push)
• Kubernetes, using a helm chart
• Docker, using docker compose
• Docker, single container deploying all components
• [x ] Other (please provide below)

Expected behaviour

Actual behaviour

I deployed the Back End & Now I’m developing the Front End in Local. When running command gulp dev I get these warnings. The application runs just fine though.

Steps to reproduce the behavior

Log output covering before error and any error statements

gulp dev
[10:08:23] Using gulpfile ~/stratos-ui/gulpfile.js
[10:08:23] Starting 'dev-build'...
[10:08:23] Starting 'clean'...
[10:08:24] Finished 'clean' after 1.43 s
[10:08:24] Starting 'prepare-frontend'...
[10:08:25] Finished 'prepare-frontend' after 494 ms
[10:08:25] Starting 'copy:configjs'...
[10:08:25] Starting 'copy:bowerjs'...
[10:08:25] Finished 'copy:configjs' after 72 ms
[10:08:25] Finished 'copy:bowerjs' after 60 ms
[10:08:25] Starting 'copy:js'...
[10:08:30] Finished 'copy:js' after 5.51 s
[10:08:30] Starting 'copy:lib'...
[10:08:31] Finished 'copy:lib' after 347 ms
[10:08:31] Starting 'css:generate'...
[10:08:32] Finished 'css:generate' after 1.74 s
[10:08:32] Starting 'css'...
[10:08:33] Finished 'css' after 866 ms
[10:08:33] Starting 'i18n'...
[10:08:33] Finished 'i18n' after 35 ms
[10:08:33] Starting 'dev-template-cache'...
[10:08:33] Finished 'dev-template-cache' after 2.96 ms
[10:08:33] Starting 'copy:html'...
[10:08:36] Finished 'copy:html' after 2.89 s
[10:08:36] Starting 'copy:assets'...
[10:08:36] Finished 'copy:assets' after 36 ms
[10:08:36] Starting 'i18n'...
[10:08:36] Starting 'copy:index'...
[10:08:36] Finished 'copy:index' after 9.83 ms
[10:08:36] Finished 'i18n' after 39 ms
[10:08:36] Starting 'inject:index'...
[10:08:37] gulp-inject 304 files into index.html.
[10:08:37] Finished 'inject:index' after 304 ms
[10:08:37] Finished 'dev-build' after 14 s
[10:08:37] Starting 'dev'...
[10:08:37] Starting 'browsersync'...
[10:08:37] Serving HTTPS with the default BrowserSync certificate
[10:08:37] Proxying API requests to: https://ows.cf.nd-paas.itn.ftgroup/pp
[10:08:37] Finished 'dev' after 294 ms
[Browsersync] Access URLs:
 --------------------------------------
       Local: https://localhost:3100
    External: https://10.194.9.216:3100
 --------------------------------------
          UI: http://localhost:3001
 UI External: http://10.194.9.216:3001
 --------------------------------------
[Browsersync] Serving files from: ./bower_components
[Browsersync] Serving files from: ./dist
[10:08:37] Finished 'browsersync' after 363 ms
[10:08:37] Starting 'watch'...
[10:08:37] 'watch' errored after 232 ms
[10:08:37] Error: watch /home/qdmb9595/stratos-ui/components/suse-branding/assets/images/ ENOSPC
    at exports._errnoException (util.js:1020:11)
    at FSWatcher.start (fs.js:1443:19)
    at Object.fs.watch (fs.js:1470:11)
    at Gaze._watchDir (/home/qdmb9595/stratos-ui/node_modules/gaze/lib/gaze.js:289:30)
    at /home/qdmb9595/stratos-ui/node_modules/gaze/lib/gaze.js:358:10
    at iterate (/home/qdmb9595/stratos-ui/node_modules/gaze/lib/helper.js:52:5)
    at Object.forEachSeries (/home/qdmb9595/stratos-ui/node_modules/gaze/lib/helper.js:66:3)
    at Gaze._initWatched (/home/qdmb9595/stratos-ui/node_modules/gaze/lib/gaze.js:354:10)
    at Gaze.add (/home/qdmb9595/stratos-ui/node_modules/gaze/lib/gaze.js:177:8)
    at new Gaze (/home/qdmb9595/stratos-ui/node_modules/gaze/lib/gaze.js:74:10)
[10:08:37] Error in plugin 'run-sequence(watch)'
Message:
    watch /home/qdmb9595/stratos-ui/components/suse-branding/assets/images/ ENOSPC
Details:
    code: ENOSPC
    errno: ENOSPC
    syscall: watch /home/qdmb9595/stratos-ui/components/suse-branding/assets/images/
    filename: /home/qdmb9595/stratos-ui/components/suse-branding/assets/images/
Stack:
Error: watch /home/qdmb9595/stratos-ui/components/suse-branding/assets/images/ ENOSPC
    at exports._errnoException (util.js:1020:11)
    at FSWatcher.start (fs.js:1443:19)
    at Object.fs.watch (fs.js:1470:11)
    at Gaze._watchDir (/home/qdmb9595/stratos-ui/node_modules/gaze/lib/gaze.js:289:30)
    at /home/qdmb9595/stratos-ui/node_modules/gaze/lib/gaze.js:358:10
    at iterate (/home/qdmb9595/stratos-ui/node_modules/gaze/lib/helper.js:52:5)
    at Object.forEachSeries (/home/qdmb9595/stratos-ui/node_modules/gaze/lib/helper.js:66:3)
    at Gaze._initWatched (/home/qdmb9595/stratos-ui/node_modules/gaze/lib/gaze.js:354:10)
    at Gaze.add (/home/qdmb9595/stratos-ui/node_modules/gaze/lib/gaze.js:177:8)
    at new Gaze (/home/qdmb9595/stratos-ui/node_modules/gaze/lib/gaze.js:74:10)

[12:27:17] GET      /v1/auth/session/verify```

[irfanhabib]

So I suspect you’ve hit this issue. The fix mentioned on Stack Overflow is:

echo fs.inotify.max_user_watches=524288 | sudo tee -a /etc/sysctl.conf && sudo sysctl -p

You need to increase max_user_watches, also, you may try bumping up the number of max open files (ulimit -n).

[hamzahamidi]

It worked, thank you 😃